"We take street dates very seriously," Activision marketing director Peter Hepworth told MCV. "The vast, vast majority has held the line. Everyone wants the big community event at midnight when the sales come through. I am aware of some exceptions."

He added: "We are looking at appropriate action. But we are pleased to say we have got the support of all of the retail partners, and they are not causing these issues. They want to help us celebrate it at midnight tonight."

The mode will feature an expansive open world, which up to four players can explore either on foot or using a bus. The bus allows faster travel between locations, but can become difficult to escape from if overrun by zombies.